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(No Model.)

P. W. SPACKE. CARBURETBR.

Patented Nov. 9, 1897.

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UNITED STATES PATENT Erica.

FRED W. SPAOKE, OF INDIANAPOLIS, INDIANA.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 593,284, dated November9, 1897.

Application filed April Y, 1896. Serial No.586,57l. (No model.)

To a/ZZ whom it may concern.-

Be it known that I, FRED W. SPACKE, a citizen of the United States,residing at Indianapolis, inthe county of Marion and State of Indiana,`have invented a new and useful Oarbureter, of which the following is aspecication.

My invention relates to an improved carbureter for use in connectionwith gas-engines.

The object of my invention is to produce a device which may be easilyattached to any formof gas-engine and which will supply said engine withan oil-vapor or gas.

The accompanying drawings illustrate my invention.

Figure 1 is a central longitudinal section of the carburetor. Fig. 2 isa view of the brush used therein.

In the drawings, 6 indicates a hollow cylindrical open-ended bodyprovided with a suitable base 7, which is adapted to be bolted to thefloor or to the engine-bed. A cap 8 is adapted to close one end of body6, and said cap is provided with a central hollow boss 9, which carriesat its outer end a bearing 10. A cap 11 is adapted to close the oppositeend of body 6 and secured to or formed integral with said cap is avertical oil-receiving chant ber 12. Said chamber 12 is preferably openat both ends, and its lower end is closed by a cap 13, which screwstherein and is provided on its inner face with a pin 14, which projectsa short distance into said chamber. A cap 15 is adapted to close the topend of chamber 12, and entering into the top of said cap is a suitableoil-supply pipe 16, provided with a valve 1'7. Cap 15 is provided with acentral opening,into the lower end of which is screwed a short plug 18,provided with a passage 19, which extends therethrough and leads intochamber 12. The lower end of passage 19 is enlarged, so as to form avalve-seat 2O therein, said enlarged portion also acting as a guide forthe upper end of a valvepin 21, which is adapted to slide verticallytherein. The upper end of said valve-pin is formed so as to iit intovalve-seat 2O and to thereby close the opening between chamber 12 andthe oil-supply pipe, and the lower end of said pin is provided with ahead which rests loosely upon the upper end of a float'22, mounted inchamber 12 and adapted to iioat in any liquid which may be introducedinto said chamber.

A series of passages 23 is formed in cap 11 and forms a communicationbetween the interior of body 6 and the interior of chamber 12.

A bearing 24 is formed in the inner surface of cap 11 opposite bearing10, and mounted in said bearings is a shaft 25, on which is mounted abrush 26, said brush being preferably formed of bristles andsubstantially flllin g the interior of body 6 and being adapted to berotated therein. The end of shaft 25 passes out through bearing 10 andthe stuffing-box carried thereby, and secured to the said extended endis a pulley 27 by means of which the shaft and brush may be rotated.

Opening into the side of chamber 12 near the top thereof is anair-supply pipe 2S. The opening in boss 9 is considerably larger thanshaft 25, and leading into said opening is a pipe 29, which leads to thegas valve or valves of the engine.

Pipe 29 of the carburetor is connected with the gas-inlet valve orvalves of the engine, and a belt is passed around pulley 27 and anysuitable shaft mounted on the engineframe.

The operation is as follows: Supposing chamber 12 and body 6 to containno oil, float 22 then rest-s upon the upper end of pin 14, which is madesufficiently long, so that when the doat is in the position describedthe upper end of valve-pin 21 extends some distance into the lower endof passage 19. Valve-pin 21 rests upon the upper end of the iioat, sothat when the float is in the position described the upper end of saidpin is withdrawn from valve-seat 20 and communication is establishedbetween chamber 12 and the oil-supply. Valve 17 being open, the oilenters through pipe 16 through said valve, the upper end of cap 15,through passage 9 of plug 1S,and down into chamber, 12, the said oilcontinuing to flow until the oil, passing through the lower openings 23into body 6, reaches the level indicated in Fig. 2. The oil as it risescarries float 22 and valve-pin 21 upward until the upper end of said pinrests in seat 20 and thereby shuts off the supply of oil. The belt beingconnected with some rotating part of the engine, brush 26 is rotated inbody 6, some IOO of the oil in the bottom of said body clinging tobristles or wires of said brush and being carried into the upper part ofsaid body thereby. By the action of the piston of the engine the air isdrawn through chamber l2, passages 23, body 6, and out throughl pipe 29in to the engine. As the said airpasses through the body 6 it 'passesthrough the brush and around the bristles thereof and thereby becomesladen with the oil-vapor. As the brush rotates and the air carries offya portion of the oil the level of the oil in body 6 is lowered, and assoon as this happens float 22 drops, thus allowing the upper end ofvalve-pin2l to leave seat 20, and a sufficient amount of oil is allowedt0 enter to maintain the level. The entrance of the oil is entirelyycontrolled by the depth of oil in the body 6, and it is thereforepossible to keep said depth uniform. It has been found preferable tomake brush 26 of bristles or other slightly absorbent ma terial, the oilsoaking into the said bristles and therefore carrying a greater portionof oil into the upper part of lbody 6, where it can be evaporated by theair. By passing heated air through body 6 a much more permanent gas isformed and said gas is much more easily exploded.

I claim as my inventionl. In a carbureter, having means for agitatingthe carbureting fluid, the combination with the hollow chamber having anoil-supply pipe leading thereto, a float mounted in said chamber, avalve-seat formed in the upper end of said chamber at the mouth of theoil-pipe and provided with a downwardly-extending guide, a valve-pinmounted so as to move in said guide, the upper end of said pin formed tolit into the valve-seat and the lower end of said pin resting looselyupon the upper end of the float, and means for preventing said pin fromdropping out of the guide, substantially as described.

2. In a carbureter, having means for agitatin g the carbureting fluid,the combination with the hollow chamber l2, a cap 11 for the upper endthereof, said cap being connected with an oil-supply pipe which leadsinto the chamber, a plug 1S carried by said cap at the mouth of thesupply-pipe, apassage 19 formed through said plug and provided with avalveseat 20, a ioat mounted in the chamber below the plug, a valve-pinmountedso as to move in the lower end of passage 19, the upper end ofsaid pin formed so as to fit into seat '2O and the lower end of said pinadapted to rest loosely upon the float, and means mounted below the oatfor engaging said iioat, whereby the said float cannot drop low enoughto allow the valve-pin to drop out of the lower end of passage 19.

3. The combination of a hollow, open-ended body, a cap adapted to closeone end thereof and provided with a bearing for a shaft, a shaft mountedtherein, a brush mounted on said shaft and adapted to be rotated in saidhollow body, a cap for the opposite end of said body, a chamber carriedby said cap, a passage forming a communication between said chamber andthe interior of said hollow body, an oil-supply pipe leading into saidchamber, means mounted in said chamber for controlling the supply ofoil, an air-inlet leading into the interior of the hollow body, and anairoutlet leading therefrom, substantially as described.

4. In a carbureter, the combination of the hollow body, a cap S for oneend thereof, a cap 11 for the other end thereof, a hollow boss carriedby cap 8, a bearingcarried by the outer end of said boss, a bearingformed in cap ll, a shaft mounted in said bearings and extending throughthe first-mentioned bearing, a brush mounted on said shaft inside thehollow body, a chamber carried by cap ll, a series of passages forming acommunication between said chamber and the interior of the hollow body,an oil-supply pipe leading into the upper end of saidl chamber, a plugsecured at the mouth of said pipe and having a passage formedtherethrough, a valve-seat formed near the upper end of said passage, afloat mounted in said chamber, avalve-pin mounted in the lower end ofthe passage in the plug, the upper end of said pin formed so as to fitinto the valve-seat and the lower end of said pin resting upon the upperend ot' the ioat, all combined and arranged to coperate substantially asand for the purpose specified.

FRED IV. SPACKE.

Vitnesses:

A. M. Hoon, lWI. V. Hoon.

